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[Qemu-devel] Re: [PATCH] x86-64: Fix 64-bit lgs/lfs/lss


From: Jan Kiszka
Subject: [Qemu-devel] Re: [PATCH] x86-64: Fix 64-bit lgs/lfs/lss
Date: Mon, 07 Jul 2008 16:45:08 +0200
User-agent: Mozilla/5.0 (X11; U; Linux i686 (x86_64); de; rv:1.8.1.12) Gecko/20080226 SUSE/2.0.0.12-1.1 Thunderbird/2.0.0.12 Mnenhy/0.7.5.666

Jan Kiszka wrote:
> Fabrice Bellard wrote:
>> Hi,
>>
>> OK, at least for Intel CPUs. From the AMD & Intel specs, the behavior
>> seems to differ between the two. If it is really the case, a CPU
>> specific config bit is needed. Unfortunately there may be other corner
>> cases where AMD and Intel differ in 64 bit mode.
> 
> Indeed, just checked: there is a difference in the specs. Will update
> this patch to make it CPU-specific.

Hmm, there is no Intel cpu type yet that supports 64-bit...

So I guess we better keeps things as-is for now before claiming to be
Intel-compatible while other broken corner cases are waiting to bite us.

Jan




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